<wicket:panel>
    <div class="brix-workspace-selector form-inline mt-1 mb-1">
        <label class="mr-sm-2" for="inlineFormCustomSelect"><wicket:message key="manage"/></label>
        <select class="custom-select mb-2 mr-sm-2 mb-sm-0" wicket:id="workspaces"></select>
    </div>
</wicket:panel>